Re: Windows 7 - black screen with blinking cursor

The blinking cursor in the top left means that the bootmanger has lost where Windows is installed. Probably because of the uninstalling of software. From that info, the computer could be returned to normal by pressing the key indicated on the blue splash screen to enter "Recovery" , usually ( F11) on newer computers. Check your screen when the first splash screen shows.

If the desire to fix the problem without going quite that far, try this: